Pitch-pipe.



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A. L. PILLMORE PITCH PIPE.

APPLIUATION FILED DEC. 31, 1912 1,125,502. Patented Jan.19, 1915.

WITH I'll INVENTOR ADEN L. FILLMORE, OF PITTSBURGH, PENNSYLVANIA.

PITCH-PIPE.

Specification of Letters Patent.

Patented J an. 19, 1915.

Application filed December 31, 1912. Serial No. 739,517.

To all whom it may concern:

Be it known that I, ADEN L. FILLlvIORE, a citizen of the United States,residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in Pitch-Pipes,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming part of thisspecification, in which- Figure l is a plan View of a preferred form or"pitch pipe embodying my invention; Fig. 2 is an edge view of the same;Fig. 3 is a section on the line III-III of Fig. 2; Figs. 4 and 5 areperspective views of two of the members of the device.

iy invention has relation to pitch pipes, and is designed to provide apitch pipe of simple construction and convenient form.

Referring to the accompanying drawings, the numeral 2 designates thebottom member of the oitch pipe, which is formed with a plurality oftransverse grooves or recesses 3, closed at one end and open at theopposite end, and which are designed to form separate air chambers forthe diilerent reeds of the device. a designates the reed plate having aseries of openings 5, of different lengths and each provided with a reed6. This plate fits the upper surface of the bottom member 2 and has aright-angled flange 5 which fits the edge of the member 2 through whichthe recesses 8 extend, said flange having a plurality of openings 7,registering with the open ends of said recesses.

8 designates a convex cap plate, which is secured to the reed plate andwhich is marked with letters or other characters representing variousnotes.

10 designates a mouth piece which is mounted to slide along the deviceso as to be brought into position to register with any one of theopenings 7. This mouth piece s formed with guide flanges 11, whichslidlngly engage the projecting edge 5 of the flange 5 and a projectingrib 12 on the cap plate 8. The mouth piece is also formed with a pointerextension 13, which, as the mouth piece is moved, is brought oppositeany one of the indications of the cap plate.

By moving this month piece to a position at which the pointer indicatesthe desired note, a corresponding note may be produced by blowing in themouth piece.

I claim:

A pitch pipe, comprising a bottom plate having a plurality of recessesopen at one side and end, an angled reed plate secured over saidrecesses, said reed plate having reed-containing slots over the opensides of said recesses, a cap-plate secured over the slots in the reedplate, and having markings thereon, and a mouth piece mounted to slidelongitudinally over the open sides of said recesses, said mouth piecehaving a pointer extension which cooperates with the markings on thecap-plate, substantially as de scribed.

In testimony whereof, I have hereunto set my hand.

ADEN L. FILLlVlORE. Witnesses H. M. ConwIN, Gno. H. PARMELEE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

